package com.zzh.demo.dao;

import com.zzh.demo.mapper.StudentMapper;
import com.zzh.demo.model.Student;

/**
 * description: <br>
 * createTime: 2018/12/116:57 <br>
 *
 * @author zzh
 */
public interface StudentMapperExt extends StudentMapper {
    Student selectByPrimaryKey(String sid);
}
